Mass of K_xFe(C₂O₄)_y · zH₂O : 5.10 g

Mass of sample : 0.195 g

Mass of FeCl₃ used in preparation : 1.60 g

Molarity of standard NaOH used : 0.100

V₁, volume of standard NaOH required for first equivalence point : 8.950 mL

V₂, volume of standard NaOH required for second equivalence point : 17.70 mL

Answer these questions using info above:

Calculate the mass of potassium in the sample :

_______g

Calculate the percent of potassium in the sample :

________%

Calculate the volume of standard NaOH that reacted with iron :

_______ mL

Calculate the mass of iron in the sample :

_______ g

Calculate the percent of iron in the sample :

________ % Fe